drillshape excludeedgelayer false hpglpendiameter hpglpennumber hpglpenoverlay hpglpenspeed layerselection linewidth mirror mode outputdirectory outputformat padsonsilk pcbplotparams plotframeref plotinvisibletext plotothertext plotreference plotvalue pscolor psnegative scaleselection subtractmaskfromsilk true useauxorigin usegerberextensions viasonmask